package sanyuesan;

import java.util.ArrayList;
import java.util.Collections;
import java.util.List;
import java.util.Random;

public class SortInterger {
    public static void main(String[] args) {
        Random ran=new Random();
        List<Integer>list=new ArrayList<>();
        for (int i=0;i<10;i++){
            list.add(ran.nextInt(100));
            System.out.println("list原始数据:"+list);
            Collections.sort(list);
            System.out.println("list排序后数据:"+list);
            Collections.reverse(list);
            System.out.println("list反转后数据:"+list);
            System.out.println("第一个元素:"+list.get(0));
        }
    }
}
